_-5

设r是f(x) = 0的根，选取x0作为r初始近似值，过点（x0,f(x0)）做曲线y = f(x)的切线L，L的方程为y = f(x0)+f (x0)(x-x0)，求出L与x轴交点的横坐标 x1 = x0-f(x0)/f (x0)，称x1为r的一次近似值。过点（x1,f(x1)）做曲线y = f(x)的切线，并求该切线与x轴交点的横坐标 x2 = x1-f(x1)/f (x1)，称x2为r的二次近似值。重复以上过程，得r的近似值序列，其中x(n+1)=x(n)－f(x(n))/f (x(n))，称为r的n+1次近似值(Let r is f (x) = 0 root, select the initial approximation x0 as the r, over point (x0, f (x0)) to do the curve y = f (x) the tangent L, L the equation y = f ( x0)+ f ' (x0) (x-x0), find the intersection of L and the x-axis of abscissa x1 = x0-f (x0)/f' (x0), x1 is called an approximation r. Through points (x1, f (x1)) to do the curve y = f (x) the tangent, and find the intersection of the tangent with the x-axis of abscissa x2 = x1-f (x1)/f ' (x1), x2 is called r the second approximation. Repeat the process, get an approximation of the sequence r, where x (n+1) = x (n)-f (x (n))/f ' (x (n)), as an approximation of r n+1 times)

基于多天线中的qpsk，bpsk的星座图的blast算法(Based on Multi-Antenna qpsk, bpsk the constellation diagram of the blast algorithm)

针对非线性目标的扩展卡尔曼滤波matlab仿真实现(Extended Kalman filter algorithm matlab simulation )

关于struct指针的小程序，能更好的清楚了解struct指针(The program is about struct pointer.)

chebyshev statistics calculation of an image

用于椒盐脉冲噪声去除的基于方向权重的去除方法，效果很好(For the salt and pepper impulsive noise removal based on the direction weighting method of removing, a good effect)

qpsk调制信号星座图及时域分析 含脉冲成型 适用于入门(qpsk modulation signal constellation diagram and time domain analysis containing pulse shaping for entry)

PSK modulation scheme with offset

this file represent normalization in binary normalization, bipolar normalization and lda using matlab

雷达信号的产生，matlab程序，滤波器的设计，脉压设计，谱分析等(Generating radar signals, matlab program, filter design, pulse design, spectral analysis, etc.)